error[E0597]: `try_catch` does not live long enough
  --> $DIR/try_catch_lifetimes.rs:9:14
   |
7  |   let _leaked = {
   |       ------- borrow later stored here
8  |     let mut try_catch = v8::TryCatch::new(scope);
9  |     let tc = try_catch.enter();
   |              ^^^^^^^^^ borrowed value does not live long enough
...
14 |   };
   |   - `try_catch` dropped here while still borrowed